Robot Assembly Line Conflicts
Problem statement
Robots stand at consecutive positions along a line. The string robotMovements gives each robot's initial state: R moves right, L moves left, and S remains stationary. Every moving robot has the same speed.
When two moving robots meet head-on, both stop and contribute 2 conflict events. When one moving robot reaches a stationary robot, it stops and contributes 1 conflict event. A robot stopped by an earlier collision becomes a stationary obstacle for later robots.
Examples
Example 1
robotMovements = "RLRSLL"return = 5The head-on collision contributes 2. The right-moving robot that reaches S contributes 1, and the final two left-moving robots contribute 1 each.
Unlock this recently reported problem
FastPrep Pro gives you full access to interview problems reported within the last week.
- Full problem statement and constraints
- 1 more worked example, explained
- Guided hints and editorial
- Run your code on real test cases
$99 billed yearly — or $19 month-to-month. Cancel anytime.